Horizontal coke oven having thickened extreme ends firing channel walls



March 31, 1970 K O Q 3,503,852

HORIZONTAL COKE OVEN HAVING THICKENED EXTREME ENDS FIRING CHANNEL WALLS Filed Oct. 12; 1967 2 Sheets-Sheet 1 March 31, 1970 N. K. KUL.AKOV 3,503,352

HORIZONTAL COKE OVEN HAVING THICKENED EXTREME ENDS FIRING CHANNEL WALLS 2 Sheets-Sheet 2 Filed Oct. 12, 1967 United States Patent Oflice Patented Mar. 31, 1970 3,503,852 HORIZONTAL COKE OVEN HAVING THICKENED EXTREME ENDS FIRING CHANNEL WALLS Nikolai Konstantinovich Kulakov, Ul. Danilevskogo 14, kv. 21, Kharkov, U.S.S.R. Filed Oct. 12, 1967, Ser. No. 674,793 Int. Cl. C10b 5/02 US. Cl. 202--139 2 Claims ABSTRACT OF THE DISCLOSURE A horizontal coke oven with firing partitions having vertical firing channels on both sides of the coking oven, the extreme channels having heavier walls than the remaining channels to withstand stresses.

The present invention relates to horizontal coke ovens, and more particularly to an improvement in the construction of walls employed for dividing coking chambers from firing partitions.

Known in the prior are are horizontal coke ovens, in which walls of vertical heating channels are of the same thickness throughout the entire length of a firing partition; the walls of the same channels in the vertical direction may be both of various or similar thickness.

It is also known that the walls of the vertical firing channels should be made as thin as possible to insure an intense heat transfer to the charge to be coked, thus obtaining an increase in the productive capacity of the coke oven.

As has been established in practice, considerable thermal stresses develop on the surface of walls of extreme vertical firing channels adjoining a coking chamber on the machine and coke sides of the oven, said thermal stresses being produced by the action of cold atmospheric air during the removal of the chamber doors and discharge of the ready coke therefrom.

In time, these thermal stresses result in the formation of cracks, an impression of a portion of the wall into the firing channel and a premature failure of the wall brickwork lining.

To eliminate this harmful phenomenon, attempts have been made to make the brickwork lining of the extreme vertical channels out of various refractory materials. These attempts, however, proved to be of little economical value.

The principal object of the invention is to provide a coke oven, in which the walls of the extreme firing channels can operate for a longer period of time.

The present invention features a horizontal coke oven, in which firing partitions with vertical firing channels are provided on both sides of the coking chamber. The proposed improvement consists in that the extreme vertical firing channels, disposed on the machine and coke sides of the oven, are of a heavier thickness on the side of the coking chamber than that of the walls in all the other vertical channels.

It is possible that two extreme, disposed side by side, vertical firing channels on the machine and coke sides of the oven will be of a considerable wall thickness.

It is expedient that the thickness of the walls of two vertical firing channels be heavier than that of the walls of all the other vertical channels by as much as 20 to 30 percent.

The invention allows thermal stresses on the surface of the brickwork lining of the extreme vertical firing channels of the side of the coking chamber to be reduced owing to an increase in the amount of heat accumulated by the brickwork lining. The static resistance of this portion of the firing partition is simultaneously increased.

The invention permits combining the high productive capacity of a coke oven with a long service life of the brickwork lining of the extreme firing channels, while the thickness of the walls of all other firing channels is maintained at its minimum value.

An exemplary embodiment of the present invention is given hereinbelow in conjunction with the accompanying drawings, in which:

FIG. 1 is a cross-sectional view of a coke oven, designed according to the invention;

FIG. 2 is a cross-sectional view of same, taken on the line IIII of FIG. 1.

The coke oven of the invention comprises a chamber 1 (FIGS. 1 and 2) for coking, closed with doors 2 on the machine and coke sides. Disposed on both sides of the chamber 1 are firing partitions 3, provided with vertical firing channels 5 divided by partition walls 4, said firing channels being intended for the combustion of gas and exhausting of the products of combustion.

The extreme vertical channels 5, on the machine and coke sides of the furnace, have walls 6 on the side of the coking chambers 1 of a heavier thickness than that of the walls 6 of the channels 5, as shown in FIG. 2.

To reinforce the brickwork lining of the head portion of the firing partition walls 3, two extreme, disposed side by side vertical channels 5' and 5" (as shown by a dotted line in FIG. 2) may have a thickened wall on the side of the chambers 1.

During the realization of the invention, it has been established that the thickness of walls of the extreme vertical channels 5' and 5" must be practically as much as 20 to 30 percent larger than that of the walls of the channels 5.

What is claimed is:

1. A horizontal coke oven comprising a coking chamber and firing partition walls disposed on both sides of the chamber with vertical firing channels within the firing walls; there being provided machine and coke side apertures on opposite ends of the chamber, closures for said apertures, vertical firing channels on the machine and coke side of said coke oven at the extreme ends of said firing walls, both of said extreme end firing channels being positioned at least partly beyond the inside face of the respective closure, said extreme end vertical channels having on the side adjacent said coking walls with a thickness heavier than that in all of the remaining vertical channels to withstand stresses at the ends of the firing wall.

2. A horizontal coke oven according to claim 1 wherein the said thickness is heavier than that of all the said remaining vertical channels by about 20 to 30 percent.

References Cited UNITED STATES PATENTS 682,441 9/1901 Wellman et al. 202139 2,839,453 6/1958 Becker 202139 FOREIGN PATENTS 582,557 8/1933 Germany.

WILBUR L. BASCOMB, 111., Primary Examiner DAVID EDWARDS, Assistant Examiner 

